Clary, 53, found fame with his cabaret act The Joan Collins Fan Club, accompanied by his pet Fanny the Wonderdog, going on to host shows such as Sticky Moments for Channel 4.

Julian Clary caused a stir in the early 1990s with a joke about then chancellor of the Exchequer Norman Lamont at a live TV awards show Credit: PA

Mike "The Situation" Sorrentino

Sorrentino has become a name in the US after starring in the reality show Jersey Shore.

The 30-year-old model turned TV star has cashed in on his fame by starting up his own fashion line, as well as releasing an autobiography and a workout DVD.

He hit the headlines last year when it was reported that fashion label Abercrombie & Fitch had offered to pay him not to wear its clothes over fears that he was causing "significant damage" to its image.

Mike Sorrentino became a star on the reality show Jersey Shore. Credit: PA

Martin Kemp

Kemp, 50, performed on a string of hits in the 1980s as a member of Spandau Ballet, along with his brother Gary.

He later went on to play villain Steve Owen in BBC soap EastEnders and has since made his debut as a director.

Martin Kemp enters the Celebrity Big Brother House Credit: PA

Cheryl Fergison

The former EastEnder bowed out of Albert Square earlier this year after five years in the long-running soap, playing Heather Trott.

Since leaving the show the 48-year-old has appeared on shows including Loose Women and Come Dine With Me.

Chery Fergison played Heather Trott in Eastenders

Coleen Nolan

Singer turned TV presenter Nolan, aged 47, sold millions of records with her sisters as The Nolans.

The mother-of-three, who was married to EastEnders actor Shane Richie, went on to become a regular on Loose Women and later ITV's This Morning.

Former So Solid Crew star Michael Harvey, 33, was one of the founder members of the group who had a number one hit with 21 Seconds.

His marriage to Alesha Dixon collapsed after it emerged he had been having an affair with singer Javine Hylton.

MC Harvey Credit: PA

Ashley McKenzie

Olympian McKenzie was introduced to judo at the age of 11 by his mother after he got into a row over Pokemon cards.

Since then, the 23-year-old, from Willesden, north London, has won World Cup titles and fought at London 2012.

Ashley Mckenzie featured in a recent BBC documentary which tracked his struggles with attention deficit hyperactivity disorder. Credit: PA

Prince Lorenzo Borghese

The Milan-born 40-year-old from an Italian noble family was raised in Connecticut and found fame in the US as the star of the ninth series of The Bachelor.

Prince Lorenzo Borghese enters the Celebrity Big Brother House

Jasmine Lennard

Lennard was a contestant on Channel Five's Make Me A Supermodel, and, despite being booted off in the early stages, went on to host a spin-off show until she was fired for being abusive about judge Rachel Hunter.

Jasmine Lennard was a contestant on Channel Five's Make Me A Supermodel, Credit: PA

Rhian Sugden

Glamour girl Sugden, 25, has modelled for magazines such as Loaded, Zoo and Nuts. She also does dance DJ sets at clubs.

Rhian Sugden enters the Celebrity Big Brother House Credit: PA

Danica Thrall

The 24-year-old underwear model got her first break eight years ago when she was named Miss Derbyshire.

Danica, who has a twin sister called Sophie, recently starred in a Channel 4 documentary called Sex Lies And Rinsing Guys that looked at how she makes money out of her male admirers.